Terrible to non-existing after sales service

Terrible to non-existing after sales service - no one could help with cancellations, rebooking or the insurance part. I had to send 6 emails to ask for confirmation that flight was cancelled, as the phone was not answered for 2 days. Furthermore, after 4 emails requesting details of the travel insurance, they sent the wording/details to me 2 days after returning from my trip. I am still to receive any sms's, which I paid for "Booking details via SMS". And even after sending email to request assistance on how can make use of the "Premium Service Package" i paid for, I have still not received any response nor service. Will never use them again